Here are a few of my favorites:
http://xkcd.com/898/
http://xkcd.com/227/
http://xkcd.com/999/ (My parenting style had been described along these lines before I saw the comic)
http://xkcd.com/1074/
http://xkcd.com/1072/
http://xkcd.com/242/
Okay, I guess I could go on and probably list 50% of them as "a few of my favorites."